Shimano Dura Ace Di2 braze-on front derailleur, FD-R9150F 11-speed

The front derailleur of the DURA-ACE R9100 series retains its compact and smooth design. For fast and smooth shifting with high pedal torque.

Synchronized Shift enables more efficient gear changes while riding. The function offers numerous advantages such as faster, more precise shifting in all riding conditions and minimizes stress on the drivetrain.

When Synchronized Shift is activated, the rear derailleur and front derailleur can be controlled with just one switch. With the Synchronized Shift function fully activated, the front derailleur detects the position of the rear derailleur and automatically shifts to the most efficient gear with the best chainline, so you never have to worry about front shifting or compensation shifting again.

With the Semi-Synchronized Shift function activated, you can shift the derailleur manually, giving you optimum control when selecting the best gear combination for your riding style. The system automatically makes the necessary correction by automatically shifting to the correct rear gear with the best chainline.


Auto-Trim function
Ergonomic and effortless shifting" SHIMANO Synchro-Shift
Fast and smooth front shifting even under heavy load
Compact and clean look
Total capacity: 16 teeth